Doug Thorley Tri-Y SBC Headers

[GonicGM]

Used Doug Thorley headers for 73-87 (88-91) square body. Appear to be p/n THY-364Y-DA with O2 sensor and smog ports. Will work with dual exhaust or Y pipe. Excellent condition, nickel plated not ceramic. Have new heat riser valve available if desired, at extra cost. $295

 

[63chevyll]

Sweet deal. Why are they not on the truck?

 

[GonicGM]

Sweet deal. Why are they not on the truck?

They could, not the red 85 though. It has factory stainless tubular headers and stainless duals.

 

[shady]

never heard of factory stainless tubular headers on a square... pics?

 

[GonicGM]

never heard of factory stainless tubular headers on a square... pics?

January 1985-1988 8600 GVW and larger carbureted trucks with H5D, non-California

 

[shady]

sweet.... never knew they existed